Which of the following cell types are responsible for initiating a secondary immune response?

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#Question id: 39494

#Biochemistry

 Which RNA polymerase transcribes mRNA in eukaryotes?

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#Question id: 39495

#Environmental Science

 Unit of sound intensity is:

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#Question id: 39496

#Biochemistry

The function of sigma (σ) factor in prokaryotic transcription is to:

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#Question id: 39497

#Biochemistry

Which DNA repair mechanism removes UV-induced thymine dimers?

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#Question id: 39498

#Biochemistry

 Non-coding regions of eukaryotic genome include:

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#Question id: 39499

#Biochemistry

In the E. coli lac operon, lactose acts as: